1 /* fs/ internal definitions
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
13 struct file_system_type;
22 extern void __init bdev_cache_init(void);
24 extern int __sync_blockdev(struct block_device *bdev, int wait);
27 static inline void bdev_cache_init(void)
31 static inline int __sync_blockdev(struct block_device *bdev, int wait)
40 extern void guard_bio_eod(int rw, struct bio *bio);
45 extern void __init chrdev_init(void);
50 extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *);
51 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
52 const char *, unsigned int, struct path *);
57 extern int copy_mount_options(const void __user *, unsigned long *);
58 extern char *copy_mount_string(const void __user *);
60 extern struct vfsmount *lookup_mnt(struct path *);
61 extern int finish_automount(struct vfsmount *, struct path *);
63 extern int sb_prepare_remount_readonly(struct super_block *);
65 extern void __init mnt_init(void);
67 extern int __mnt_want_write(struct vfsmount *);
68 extern int __mnt_want_write_file(struct file *);
69 extern void __mnt_drop_write(struct vfsmount *);
70 extern void __mnt_drop_write_file(struct file *);
75 extern void chroot_fs_refs(const struct path *, const struct path *);
80 extern struct file *get_empty_filp(void);
85 extern int do_remount_sb(struct super_block *, int, void *, int);
86 extern bool grab_super_passive(struct super_block *sb);
87 extern struct dentry *mount_fs(struct file_system_type *,
88 int, const char *, void *);
89 extern struct super_block *user_get_super(dev_t);
101 extern struct file *do_filp_open(int dfd, struct filename *pathname,
102 const struct open_flags *op);
103 extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
104 const char *, const struct open_flags *);
106 extern long do_handle_open(int mountdirfd,
107 struct file_handle __user *ufh, int open_flag);
108 extern int open_check_o_direct(struct file *f);
113 extern spinlock_t inode_sb_list_lock;
114 extern long prune_icache_sb(struct super_block *sb, unsigned long nr_to_scan,
116 extern void inode_add_lru(struct inode *inode);
121 extern void inode_wb_list_del(struct inode *inode);
123 extern long get_nr_dirty_inodes(void);
124 extern void evict_inodes(struct super_block *);
125 extern int invalidate_inodes(struct super_block *, bool);
130 extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);
131 extern int d_set_mounted(struct dentry *dentry);
132 extern long prune_dcache_sb(struct super_block *sb, unsigned long nr_to_scan,
138 extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
143 extern const struct file_operations pipefifo_fops;
148 extern void sb_pin_kill(struct super_block *sb);
149 extern void mnt_pin_kill(struct mount *m);